class TestRectangle(unittest.TestCase):

    def setUp(self):
        self.rectangle = Rectangle(5, 5)

    def it_check_its_height(self):
        self.rectangle.height |should| equal_to(5)

    def it_check_its_width(self):
        self.rectangle.width |should| equal_to(5)

    def it_check_its_area(self):
        self.rectangle.area() |should| equal_to(25)

    def it_change_its_height(self):
        self.rectangle.change_height(7)
        self.rectangle.height |should| equal_to(7)

    def it_change_its_width(self):
        self.rectangle.change_width(7)
        self.rectangle.width |should| equal_to(7)

    def it_check_its_perimeter(self):
        self.rectangle.perimeter() |should| equal_to(20)
 def setUp(self):
     self.rectangle = Rectangle(5, 5)